drilling positioning信息详情
钻孔定位
drilling───n.钻孔；训练，教练；演练；v.钻孔；训练（drill的ing形式）
positioning accuracy───[机]定位精度；定位准确度
drilling down───向地下钻；深度探讨
crowner drilling───冠钻
drilling operation───钻井作业
drilling hole───钻孔
drilling jobs───钻井作业
choral drilling───齐声练习
ocean drilling───海洋钻探
Thus in an operation such as drilling or punching, the positioning and cutting take place sequentially.───因此在一个操作中，如钻或冲孔操作先定位在加工。
deep well automatic vertical drilling tools positioning at thousands of meters, the hydraulic steering mechanism of them is demand of upper performances.───深井自动垂直钻井工具工作于数千米深的井下，对其上的液压导向机构的性能有较高的要求。
mobile ocean platform, and owing to its high positioning capacity and good operation stability, the self-elevation drilling platform takes a leading role in continetial shelf exploration.───自升式钻井平台属于海上移动式平台，由于其定位能力强且作业稳定性好，在大陆架的勘探开发中居主力军地位。
This clinometer not only provides reliable ensurement and technical support for the well drilling positioning, but also lowers the production cost and improves the production ef...